MODELLING SUBMARINE CONTROL SURFACE DEFLECTION DYNAMICS
- Authors
- Corporate Authors
- Defence Research Establishment Atlantic, Dartmouth NS (CAN)
- Abstract
- An algorithm is presented for modelling the time response of a lifting surface control system to an arbitrary set of commands. Response dynamics are governed by a linear, second order, ordinary differential equation. This allows the control system response frequency and damping to be modelled, as well as current control surface position and rate of change of position to be matched when a new command is issued. In order not to exceed the rate limit of the control system, yet maintain continuity in the response and its high order derivatives in time, the algorithm reduces response frequency when large deflection changes are required. This approach is compared to a common first order model, and to a second order model having piecewise continuous high order time derivatives but which always models both response frequency and rate limit.
- Report Number
- DREA-TM-90-203 — Technical Memorandum
- Date of publication
- 15 Mar 1990
- Number of Pages
- 24
- DSTKIM No
- 90-02869
- CANDIS No
- 65126
- Format(s):
- Document Image stored on Optical Disk;Originator's fiche received by DSIS
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